package com.xy.shiro.realm;

import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;

/**
 * 自定义realm实现
 * 将认证/授权数据的来源转为数据库的实现
 */
public class CustomerMd5Realm extends AuthorizingRealm {

    //授权
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        return null;
    }

    //认证
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        //在token中获取用户名
        String principal = (String) token.getPrincipal();
        //根据身份信息查询数据库
        if ("aaa".equals(principal)) {
            SimpleAuthenticationInfo simpleAuthenticationInfo = new SimpleAuthenticationInfo(principal,
                    "9c3b5c0672cd599ccf1019bddaa8089b",
                    ByteSource.Util.bytes("123"),
                    this.getName());
            return simpleAuthenticationInfo;
        }
        return null;
    }
}
